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OBJECTIVE Herpes zoster is a common and painful disease that is caused by reactivation of the varicella-zoster virus. Herpes zoster pain that persists after healing of the acute infection is termed postherpetic neuralgia (PHN), a chronic pain syndrome that is often refractory to all treatment. The prevalence of PHN is expected to increase substantially in(More)
Baseline and follow-up data from 4 samples of immunocompetent patients with herpes zoster who participated in clinical trials of the antiviral agent famciclovir were examined (N = 1778). In both univariate and multivariate analyses, severe rash (ie, >50 lesions, defined as papules, vesicles, or crusted vesicles) was significantly associated with older age,(More)
The results of a considerable number of recent prospective studies have demonstrated that greater acute pain severity in herpes zoster patients is associated with a significantly greater risk of developing postherpetic neuralgia (PHN). Only a few studies have examined the relationships between acute pain severity and demographic characteristics and clinical(More)
Geographic and racial factors have been reported in studies of the epidemiology of varicella and herpes zoster. To clarify further these relationships, data from five multicenter clinical trials of the antiviral agent famciclovir were examined (total N = 2074). Non-Caucasian racial group and tropical region were each significantly associated with younger(More)
To better understand the degree to which risk-standardized thirty-day readmission rates may be influenced by social factors, we compared results for hospitals in Missouri under two types of models. The first type of model is currently used by the Centers for Medicare and Medicaid Services for public reporting of condition-specific hospital readmission rates(More)
Classical optical lithography is diffraction limited to writing features of a size l͞2 or greater, where l is the optical wavelength. Using nonclassical photon-number states, entangled N at a time, we show that it is possible to write features of minimum size l͑͞2N͒ in an N-photon absorbing substrate. This result allows one to write a factor of N 2 more(More)
We perform a calculation to determine how quantum mechanical fluctuations influence the propagation of a spatial soliton through a nonlinear material. To do so, we derive equations of motion for the linearized operators describing the deviation of the soliton position and transverse momentum from those of a corresponding classical solution to the nonlinear(More)
Elna M. Nagasako, Anne Louise Oaklander, Robert H. Dworkin* Washington University School of Medicine, St. Louis, MO, USA Nerve Injury Unit, Departments of Anesthesiology, Neurology, and Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA Department of Anesthesiology, University of Rochester School of Medicine and Dentistry,(More)